USCGC Bertholf, the first National Security Cutter
|Name:||Legend-class National Security Cutter|
|Preceded by:||Hamilton class|
|Cost:||$684m(average), $735m(FY13 ship)|
|Type:||United States Coast Guard Cutter|
|Displacement:||4,500 long tons (4,600 t)|
|Length:||418 feet (127 m)|
|Beam:||54 feet (16 m)|
|Draft:||22.5 feet (6.9 m)|
|Speed:||Over 28 knots (52 km/h; 32 mph)|
|Range:||12,000 nautical miles (22,000 km; 14,000 mi)|
|Complement:||113 (14 officers + 99 enlisted) and can carry up to 148 depending on mission|
|Sensors and |
|Electronic warfare |
|Armor:||Ballistic protection for main gun|
|Aircraft carried:||1 × MH-65C Dolphin MCH and 2 × sUAS |
|Aviation facilities:||50-by-80-foot (15 m × 24 m) flight deck, hangar for all aircraft|
The Legend-class cutter, also known as the National Security Cutter (NSC) and Maritime Security Cutter, Large, is the largest active patrol cutter class of the United States Coast Guard. Entering into service in 2008, the Legend class is the largest of several new cutter designs developed as part of the Integrated Deepwater System Program. An enlarged and more heavily armed design based on this hull form is one of the four finalists in the U.S. Navy's FFG(X) competition.
These vessels can be used for a variety of tasks, including: environmental protection, search and rescue, fisheries protection, PWCS (Ports, waterways, and coastal security), counter-terrorism activities, law enforcement, drug interdiction, defense operations, and other military/naval operations, including assigned naval warfare tasks with the US Navy.
The Legend-class cutters are the second longest of all U.S. Coast Guard cutters, behind the research icebreaker Healy, and will replace the twelve Hamilton-class cutters in service. These cutters are envisioned by the Coast Guard as being able to undertake the entire range of the high endurance cutter roles with additional upgrades to make it more of an asset to the Department of Defense during declared national emergency contingencies. To facilitate intercept missions, the Legend class can carry and launch both the Short Range Prosecutor and the Long Range Interceptor rigid hull inflatable boats (RHIBs). The cutters are configured to be able to survive in Low Threat Environments, factors of which include an enemy having a poorly equipped military, some coastal patrol craft, and few to none anti-ship cruise missiles. Operations in this environment can also be general defense operations including theater security, port protection, ship escort, anti-piracy, and maritime interception operations. The cutters can also survive in Medium Threat Environments, which can include a fairly well equipped military of ships and aircraft with weapons and radar coverage well offshore, higher numbers of anti-ship cruise missiles and a possible submarine threat. Operations in this threat environment could include defense operations, naval surface fire support, and the evacuation of non-combatants. The cutters are not expected to survive in a high threat environment with their current configuration.
The cutter has a rear-launching ramp, capable of launching and retrieving the two aft stored rigid-hulled inflatable boats while underway. The NSC is built to about 90% military standards. The NSC is constructed with a steel hull and steel superstructure with steel bulkheads. Ballistic protection is provided for the main gun, and the cutter’s crew-served weapons can have steel ballistic shields attached for protection. The NSC is equipped with a state of the art damage control system that contributes to the ship's survivability. The NSC is designed to US Navy Damage Stability Criteria and to Level 1 Survivability standards. Most of the NSC design is compatible with ABS Naval Vessel Rules. The NSC has degaussing capability. The cutters have a reduced Radar cross-section (RCS) which gives the cutters a higher degree of stealth over the past cutters. The NSC uses a modified version of the same stealthy mast design as the Arleigh Burke-class destroyers.
Legend-class cutters have increased data link bandwidth. The Hensoldt (formerly EADS North America) TRS-3D radar system provides three-dimensional air and surface search functions and is used in the LCS program as well as the German Korvette 130 program. The cutters are also equipped with the AN/SLQ-32(V)2 Electronic Warfare (EW) system used in the DDG-51. The Legend class is equipped with the same 220 rpm Bofors 57 mm gun as mounted on the USN's Littoral combat ships. Guided 57 mm ammunition is being developed for the Mk 110 for the Navy and Coast Guard, including for use on the National Security cutters. The Missile Defense duties are handled by the MK 53 NULKA decoy systems, the MK 36 SRBOC countermeasure systems also used on the FFG-7 and CG-47 programs and the Phalanx CIWS. The combination of the Mk 110 and the Phalanx give the cutter's Anti-Surface capability, limited Air-Defense capability and the capability to provide naval gunfire support. The cutters have space, weight, and power reserved for additional weapons and systems which includes mine warfare systems, non-line of sight missiles, and can have a SeaRAM replace the 20mm Phalanx CIWS. The NSC is capable of carrying a sonar that is reported as having mine and underwater swimmer location ability. The NSC has a NBC detection and defense system to repel chemical, biological, or radiological attacks and has wash-down systems. The cutter's weapons, command and control suite can be upgraded and is hardened to survive potential attacks and process increased data flow.
The first NSC, USCGC Bertholf, entered sea trials in February 2008. She has been in service since August 2008, and is homeported at Coast Guard Island, Alameda, California. A second NSC, Waesche, is also homeported in Alameda in 2010. Construction of Stratton - which now carries a crew of 123 - began in 2008 at Huntington Ingalls Shipyard in Pascagoula, Miss. The vessel was christened by first lady Michelle Obama on July 23, 2010, and released to the custody of the Coast Guard on September 2, 2011. She is now in service in Alameda. Construction on the fourth NSC, Hamilton, began in 2011. The Fleet Mix Analysis (FMA) Phase 1 study in December 2009 called for nine NSCs, but there are eight ships in the Program of Record and only seven hulls have been funded as of the FY2013-17 capital investment plan. The NSC's proved their capability to perform naval operations during the 2012 RIMPAC exercises, where the USCGC Bertholf detected and tracked missile threats and also provided naval gunfire support for troops ashore during the training exercise, demonstrating the capability of moving with other naval forces and being able to perform other defense operations.
On 7 July 2009, the Government Accountability Office reported that delays in the NSC program are likely to result in "the loss of thousands of cutter operational days for conducting missions through 2017." The GAO also reported that month that problems in the NSC program have delayed the OPC program by five years. The program was also plagued by structural issues; the Coast Guard historically uses its cutters extensively, typically 180 days at sea a year, furthering the problem this will often be in North Pacific and North Atlantic waters that are some of the roughest seas in the Northern Hemisphere. As such, the stresses on the Cutters are expected to be very severe. Structural Analysis showed that some parts of the cutter could be expected to survive only 3 years. This has been addressed in cutter 752 on, with the first two cutters receiving reinforcements later. WMSL-752, the Stratton, suffered corrosion and leaks within weeks of commissioning in 2012. Earlier ships have not had that problem so it may be the result of the Cathodic protection system being hooked up in reverse. The first NSC, the Bertholf, has had structural enhancements put into place to fix reports of fatigue life issues; the second NSC, Waesche, had structural enhancement work completed in September 2018. The cutter Stratton and all subsequent NSCs have the enhancements already installed. The NSC program originally encountered problems meeting TEMPEST requirements, but after more recent testing the first NSC, the USCGC Bertholf, passed all TEMPEST requirements.
The delays and problems have led to cost increases. The latest USCG estimate for eight ships is $5.474B for an average cost of $684m; the first six hulls cost $3.902B for an average of $650m/ship. The sixth NSC cost $735m in FY2012/3. In the FY18 Homeland Security Appropriations Bill released on the 21 November 2017, funding for the 10th NSC at a cost of $540 million and long lead items for the 11th NSC was proposed.  The FY2018 Omnibus Appropriations Bill includes $1.24 billion in funding for the National Security Cutter (NSC) program. The bill contains funding for the construction of the 10th National Security Cutter (NSC), long-lead-time materials for the 11th NSC, and construction of the 11th NSC.
In January 2018, a whistleblower lawsuit against Lockheed Martin Corp. was unsealed, alleging that the company had sold defective communications systems to the NSC program. The qui tam lawsuit, filed by a former Lockheed employee, said Lockheed had concealed known problems with the radio frequency distribution systems installed on nine NSCs, preventing them from simultaneously transmitting and receiving multiple radio signals. To settle the lawsuit, Lockheed agreed to pay the federal government $2.2 million and to provide repairs valued at $2.2 million to the faulty systems.
Huntington Ingalls Industries has proposed two "patrol frigates" for Navy use, based on the NSC hull.
Patrol Frigate 4501 is very similar to the NSC, the main differences being a modified stern ramp and a knuckleboom crane replacing the overhead crane. The crew is increased to 148, and it was offered to the US Navy as a replacement for the Littoral Combat Ship; the FY13 cost of an LCS was $446.3m compared to $735m for an NSC.
Patrol Frigate 4921 is a more radical redesign with a crew of 141, adding weapons and sensors at the expense of reducing range from 12,000 nautical miles (22,000 km) to 8,000 nautical miles (15,000 km). It adds a 12-cell Mk56 VLS launcher for ESSM air-defense missiles, just behind the main gun which is upgraded from 57mm to a 76 mm Super Rapid. Two quad launchers for Harpoon anti-ship missiles and a triple launcher for torpedoes are added to the stern. It retains the SeaRAM/Phalanx CIWS and 6 machine guns of other NSC variants. The stern is closed in and houses a towed-array sonar; there is a hull sonar for mine countermeasures and an ESM suite. The original "National Patrol Frigate" concept had an AN/SPY-1F air-defense radar but by 2012 the PF4921 was being shown with an Australian CEAFAR radar.
Brazil, Saudi Arabia, and Germany have also shown interest in NSC derivatives.
A more heavily armed and enlarged version of the Patrol Frigate design based on this hull form was entered into the U.S. Navy's FFG(X) program which will procure 20 frigates starting in 2020. On February 2018 it was announced that this design was one of five finalists that would be considered going forward.
|Ship||Hull Number||Builder||Namesake||Laid down||Launched||Commissioned||Homeport||Status|
|Bertholf||WMSL-750||Ingalls Shipbuilding, Pascagoula||Commodore Ellsworth P. Bertholf||March 29, 2005||September 29, 2006||August 4, 2008||Alameda, CA||Active in service|
|Waesche||WMSL-751||Admiral Russell R. Waesche||September 11, 2006||July 12, 2008||May 7, 2010||Alameda, CA||Active in service|
|Stratton||WMSL-752||Captain Dorothy C. Stratton||July 20, 2009||July 23, 2010||March 31, 2012||Alameda, CA||Active in service|
|Hamilton||WMSL-753||Secretary Alexander Hamilton||September 5, 2012||August 10, 2013||December 6, 2014||Charleston, SC||Active in service|
|James||WMSL-754||Captain Joshua James||May 17, 2013||May 3, 2014||August 8, 2015||Charleston, SC||Active in service|
|Munro||WMSL-755||Signalman First Class Douglas A. Munro||November 5, 2014||September 12, 2015||April 1, 2017||Alameda, CA||Active In service|
|Kimball||WMSL-756||Sumner I. Kimball||March 4, 2016||December 17, 2016||2019-08||Honolulu, HI||Special Commission|
|Midgett||WMSL-757||Midgett Family||January 30, 2017||November 22, 2017||2019-08||Honolulu, HI||Special Commission|
|Stone||WMSL-758||Commander Elmer F. Stone||September 14, 2018||2021||Charleston, SC||Under construction|
|Unnamed||WMSL-759||Charleston, SC||On order|
|Unnamed||WMSL-760||Charleston, SC||On order|
A NULKA decoy is fired from the cutter Bertholf
USCGC Waesche in San Francisco Bay
- Equipment of the United States Coast Guard
- Offshore Patrol Cutter
- USCG Seagoing Buoy Tender
- USCG inland buoy tender
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|Wikimedia Commons has media related to Legend class cutters.|
- National Security Cutter on Ingalls Shipbuilding's official website
- National Security Cutter at USCG Acquisition Directorate site
- National Security Cutter fact sheet